A large abrupt change in the abyssal water masses of the eastern Mediterranean
作者： Angelo Rubino , Dagmar Hainbucher
DOI: 10.1029/2007GL031737
关键词: Oceanography 、 Deep water 、 Water mass 、 Thermohaline circulation 、 Abyssal zone 、 Eastern mediterranean 、 Structural basin 、 Mediterranean sea 、 Stratification (water) 、 Geology
摘要: [1] In this letter we report observations showing, for the first time, occurrence of a new, major transformation in thermohaline cell eastern Mediterranean Sea. After 2 decades, during which waters Aegean origin dominated abyssal layers that basin, Adriatic Sea has returned to represent source Eastern Deep Water (EMDW). The observed characteristics such water, however, profoundly differ from those previously Ionian basin. In fact, newly formed EMDW there is saltier, warmer, and denser than before Transient (EMT). Thus, past Mediterranean, once considered steady, showed two large, abrupt, somehow opposite fluctuations. As case one, origins, climatic implications, fate second fluctuation have be clarified.
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